# Hip Charts vs Tri Tech GPS

The clearest difference is device support: Hip Charts at 3 against Tri Tech GPS's —. Tri Tech GPS's advantage is iOS requirement (13.0 vs 15.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Hip Charts | Tri Tech GPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (8 ratings)](https://appshunter.io/ios/app/hip-charts/id6443591337/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 113 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Walk About Apps](https://appshunter.io/developer/480229755) | [Tri Technology L.L.C.](https://appshunter.io/developer/1653775973) |

## What reviewers say

### Hip Charts

[App page](https://appshunter.io/ios/app/hip-charts/id6443591337)

Access NOAA nautical charts for free on your mobile devices. View charts online and download single areas for offline use. Additional features like multiple offline downloads and custom boundaries require a purchase.

**Highlights:** Unlimited online NOAA chart viewing, Download single chart areas for offline use, Automatic chart loading, Cellular and WiFi chart downloads, Custom download boundaries (paid)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Tri Tech GPS

[App page](https://appshunter.io/ios/app/tri-tech-gps/id6444313004)

**In-app purchases:** none


## Frequently asked questions

### Is Hip Charts free?

Hip Charts is free to download, with no in-app purchases.

### Is Tri Tech GPS free?

Tri Tech GPS is free to download, with no in-app purchases.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*